Author Topic: Creating a battery charger  (Read 1474 times)

0 Members and 1 Guest are viewing this topic.

Offline boybTopic starter

  • Jr. Member
  • **
  • Posts: 27
  • Helpful? 0
Creating a battery charger
« on: July 03, 2008, 08:44:50 PM »
Is 500mAh ok for a battery charger or is it too high?

I have an adjustable charger that I can change the voltage to match the battery pack.  Is it ok if the voltage is +/- 1V of the battery pack you are supplying it to? Should I favor the +1 instead of the -1?

Offline Admin

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,658
  • Helpful? 169
    • Society of Robots
Re: Creating a battery charger
« Reply #1 on: July 20, 2008, 05:18:47 PM »
500mAh? or 500mA? :P

Both are fine.

Quote
Is it ok if the voltage is +/- 1V of the battery pack you are supplying it to? Should I favor the +1 instead of the -1?
To charge a 6V battery, you'd typically wanna use something around 7V+. A fully charged 6V battery is *never* 6V, but some voltage higher than that.

Offline boybTopic starter

  • Jr. Member
  • **
  • Posts: 27
  • Helpful? 0
Re: Creating a battery charger
« Reply #2 on: July 30, 2008, 12:15:26 AM »
When I charged the battery pack I did it with an 8V supply (closest to >6V I could find) and 500mA.

After the battery pack supplied 7V.  Is this normal at all?  It's a NiMH battery, I thought their voltage was supposed to be relatively constant...

Offline Admin

  • Administrator
  • Supreme Robot
  • *****
  • Posts: 11,658
  • Helpful? 169
    • Society of Robots
Re: Creating a battery charger
« Reply #3 on: July 30, 2008, 06:36:48 AM »
Quote
After the battery pack supplied 7V.  Is this normal at all?
yeap, pretty normal

 


Get Your Ad Here

data_list